Sodium Bisulfite should be avoided by those intolerant to natural sulphites. It can exacerbate the symptoms of asthma as it can cause an attack and also cause gastric irritation due to release of sulphur dioxide.(1)
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Description
Sodium Bisulfite is a chemical compound which is a salt of bisulfite, prepared by bubbling sulfur dioxide in a solution of sodium carbonate in water. It is a food additive with E number E222, in the form of white crystal or crystalline powder with slight sulfurous odour. It is used as a food preservative and bleaching agent in food products. It is used in fruit canning to prevent browning. It is widely used in wine making to prevents its color and flavour.